A dynamo develops $0.5 A$ at $6 V$ . The energy which is generated in one second is

0.083 J

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3 J

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12 J

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none of these

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Solution

The correct option is A $3 J$
Given:
Voltage(V) = $6 V$
Current(I) = $0.5 A$
Time(t) = $1 s e c$
Energy generated = $V I t$
$\Rightarrow$ Energy $= 6 \times 0.5 \times 1 = 3 J$

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